DE3913862A1 - Combustion engine - Google Patents

Combustion engine

Info

Publication number
DE3913862A1
DE3913862A1 DE19893913862 DE3913862A DE3913862A1 DE 3913862 A1 DE3913862 A1 DE 3913862A1 DE 19893913862 DE19893913862 DE 19893913862 DE 3913862 A DE3913862 A DE 3913862A DE 3913862 A1 DE3913862 A1 DE 3913862A1
Authority
DE
Germany
Prior art keywords
combustion engine
disc
internal combustion
housing
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE19893913862
Other languages
German (de)
Inventor
Joseph Pirc
Original Assignee
Joseph Pirc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Joseph Pirc filed Critical Joseph Pirc
Priority to DE19893913862 priority Critical patent/DE3913862A1/en
Publication of DE3913862A1 publication Critical patent/DE3913862A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B13/00Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/045Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder with cylinder axes arranged substantially tangentially to a circle centred on main shaft axis
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B57/00Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons
    • F02B57/08Engines with star-shaped cylinder arrangements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00Other engines
    • F02B75/16Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18Multi-cylinder engines
    • F02B2075/1804Number of cylinders
    • F02B2075/1832Number of cylinders eight

Description

The invention relates to an internal combustion engine according to the preamble of claim 1.

The internal combustion engine is a heat engine with Combustion of periodically supplied fuel Air mixture. A distinction is made between reciprocating pistons engines where the gas forces move back and forth going pistons over a connecting rod on the crank shaft are transmitted, and so-called rotary pistons engines in which the piston z. B. a triangular Cross section with convex side surfaces. This moves in an oval case, being completed periodically work bigger and smaller spaces arise. However, they are also internal combustion engines known, which is a mixed form of the two above. Engines represent. So is a circle from DE-OS 26 48 395 known piston engine from which the invention is based. The well-known rotary piston engine consists of a Housing and a rotary piston rotating in it, the rotary piston contains four radial bores, in which sliding pistons are arranged. This sliding pistons are in piston bearings by means of piston pins eccentric due to oval sliding grooves in the housing shells risch controlled so that a four-step operation with one revolution of the piston. Everyone Sliding piston begins through an intake duct in the Housing fuel-air mixture by the turn  of the rotary piston. The compression of the The fuel-air mixture will take place in the next quarter of the housing from the carburetor to the top Dead center or to the spark plug. After the following Work step takes place the discharge of the burned Fuel mixture. In this known engine ver run the central longitudinal axes of the cylinder bores so that they intersect in the center of the disc. The fact that the pistons after the ignition process moving towards the center of the motor, the shaft through the pistons therefore only have a very low torque experienced is the efficiency of such Machine only slight. Another disadvantage of before known design is that by the radial Arrangement of the cylinder bores only a few pistons have space in the disc. This is also the Efficiency of the previously known machine is limited. Also control the pistons with the help of a a groove-guided ball bearing is disadvantageous, because in connection with the radial arrangement Ver Edges of the piston in the bore cannot be removed are close. In any case, this construction requires a higher friction of the piston on the cylinder wall, whereby the requirements for lubrication and Cooling are increased. In addition, there is Risk of foreign bodies accumulating in the groove  which unhindered rolling of the ball bearings in complicate or even prevent the groove.

The invention is therefore based on a Ver internal combustion engine of the latter type the task based on the efficiency of the engine at comparable simple construction to enlarge.

The invention solves this problem with the help of Characteristic of the characterizing part of claim 1. Advantageous embodiments of the invention are Subject of the subclaims.

In a housing made of cast metal or ceramic, possibly also plastic, is rotatably on one Shaft a circular disc encircling the housing. In the Circular disc are z. B. eight milled and accordingly surface-hardened holes provided. The means longitudinal axes of the holes do not run on the Center of the circular disc too, but are around one Angle offset against the radius of the disc, e.g. B. by 45 degrees. The slides run in these holes piston their stroke movements. Is that injected Mixture compressed in the cylinder space, z. B. by self-ignition the explosion of the fuel air mixture, causing the piston to bore in is driven down. The impulse of the down  moving piston transfers over the disc on the shaft, the force exerted by the piston torque via a lever arm on the shaft generated. The lever arm is the vertical distance the extended central longitudinal axis of the bore to Center of rotation. Thus the forces from the Maximum piston stroke used, as they are not against the Act axis. By the effect of the pistons Torques increase efficiency on the one hand the machine. On the other hand, the engine can already low starting speeds caused by a conventional starters are caused to be its own record constant rotation.

The fuel-air mixture is injected through a tangential in the housing periphery running feeder. The result of the elliptical Guide inside the bore of the moving piston sucks the mixture. In the further course of the rotation he the piston reaches its bottom dead center and moves then in the opposite direction, the The fuel-air mixture is compressed until about top dead center the ignition of the mixture takes place. This can be done by a spark plug, in the present case In this case, however, auto-ignition is provided. By the explosion of the mixture turns the piston inside of the bore, which leads to the above  Torque leads. After reaching bottom dead center the piston is returned through the elliptical guidance returned to the top dead center position, in the the bore opening at an outlet opening for the burned gases. One turn of the Disc in the housing thus causes one for each piston Four stroke.

Due to the short stroke of the pistons and the long There is a rotation path of the disc in the housing increased economy because the fuel ver need is low. This results from the slant position of the pistons. In addition, it is possible that the combustion takes place only when power is required becomes. Therefore, when the vehicle runs out there will be no Fuel supplied. This is especially in the city traffic is an advantage and contributes to environmental relief at. The motor can be universal and in any Location installed and used. Also the oil ver need is low because the oil is supplied by an injection pump is inserted into the engine block.

To guide and thus control the piston strikes of claim 2 that the guides as on the mutually facing inner surfaces of the housing arranged rails are formed, on each Sliding piston four assigned in pairs  Rolls run out on two rigid with the sliding piston connected axes are arranged. Each two rollers, it can be rollers or ball bearings, enclose the guide rail and roll up the parallel rail surfaces. Consequently the pistons in the bores can be calm, precise and move without twists, because of the pairs of rollers an exact linear movement of the pistons in the Boh is done. In contrast to the groove guide, it is Risk of pollution-induced Impairment of the role flow largely excluded. To seal the piston in the bore, open the same in a conventional manner a scraper ring intended.

To the writing in the radial direction against the housing to seal, are according to claim 3 between each two cylinder bores called centrifugal seals intended. When the disc rotates, they become consequential the centrifugal force pressed against the housing jacket, whereby the sealing force also increases with increasing speed enlarged. To seal the disc against each other other facing inner surfaces of the housing are in accordance Claim 4 in annular grooves in the housing inner surfaces Pressure seals provided.  

To further increase the efficiency of the engine according to the invention the case is to be increased by a partition divided into two chambers. Located in one chamber the rotating disc with the sliding pistons. In the neighboring chamber is rotatably on the discs shaft arranged a turbine wheel. Via a channel in The casing shell is the turbine chamber with the exhaust opening for the burned gases connected. In contrast to conventional turbochargers, where the out Combustion gases compressed and heated may need to be due to the close neighbor shaft of the two chambers are still called combustion gases to be used, the turbine wheel and thus additional Lich drive the shaft.

According to claim 6, the turbine blades are against Inner chamber walls sealed by pressure seals.

The feature of claim 7 provides that several engines units are arranged side by side on the shaft, which ent the performance of the engine speaking increased.

It can be provided according to claim 8 that the Central longitudinal axes of the cylinder bores next to each other other arranged motors are offset from each other. It is therefore possible that between the ignition times  two successive cylinders of one unit the mixture in a cylinder of an adjacent one Unit can be ignited.

The invention is described below with reference to drawings shown and explained in more detail. Show it

Fig. 1 internal combustion engine in longitudinal section;

Fig. 2 internal combustion engine according to FIG. 1 in cross section with the turbine part connected.

In the drawing, the motor is generally provided with the reference sign ( 1 ). It consists of a housing ( 2 ), which is approximately cylindrical. In the present embodiment, the cylinder housing is divided into two chambers ( 4 and 5 ) by an intermediate wall ( 3 ). A shaft ( 6 ) passes through the housing coaxially to the cylinder axis and is supported by ball bearings ( 7 , 8 and 9 ) in the housing walls ( 10 and 11 ) and in the intermediate wall ( 3 ). In the chamber ( 5 ) is rotatably on the shaft ( 6 ) a circular disc ( 12 ) is arranged, in which eight cylinder bores ( 13 ) are provided in the present case. The cylinder bores ( 13 ) are arranged so that their central longitudinal axes form an angle of 45 degrees with the radii of the disk ( 12 ). In the cylinder bores ( 13 ) sliding pistons ( 14 ) are displaceable, which have a side view approximately trapezoidal and in 90 degree offset rectangular piston rod ( 15 ). Provided in the piston rod ( 15 ) are two rigid axes ( 16 and 17 ) which are arranged parallel to one another and are offset with respect to one another with respect to the central longitudinal axis of the cylinder bore ( 13 ). Rollers ( 18 ) are mounted on the stub axles of the axles ( 16 and 17 ). The rollers ( 18 ) roll on guide rails ( 19 ) which laterally extend from the chamber walls ( 3 and 11 ) into the chamber ( 5 ). As is apparent from Fig. 1, the guide rails (19) are configured in elliptical. The elliptical guides ( 19 ) lie in cylindrical recesses ( 20 ) in the side surfaces of the disc ( 12 ). In order to seal the disc ( 12 ) against the cylinder jacket of the housing ( 2 ), centrifugal seals ( 21 ) are provided on the circumference of the disc ( 12 ) between two cylinder bores ( 13 ). Pressure seals ( 22 ) laterally seal the disc against the chamber walls ( 3 and 11 ). The pressure seals ( 22 ) are located in annular grooves in these chamber walls. An inlet opening ( 24 ) into which the fuel-air mixture is injected is located laterally in the cylinder jacket of the housing ( 2 ) at the level of the aphelion ( 23 ) of the elliptical guide ( 19 ). A channel ( 25 ) runs from the opening ( 24 ) in the tangential direction (in the direction of rotation of the disk) through which the injected mixture reaches the cylinder spaces ( 13 ). In the direction of rotation of the disc ( 12 ) in front of the injection opening ( 24 ), an outlet opening ( 26 ) for the burned exhaust gases is provided in the housing ( 2 ). From the cylinder spaces ( 13 ), the burned gas is passed through the opening ( 26 ) into the chamber ( 4 ) via a channel ( 27 ). If the guide rollers of a piston are in the aphelium ( 23 ) of the guide ( 19 ), the top dead center of the piston ( 14 ) is reached, with the compressed exhaust gases via the channel ( 27 ) and the opening ( 26 ) into the chamber ( 4 ) are expelled. As the rotation continues, the piston moves past the injection opening and the channel ( 25 ) and draws in the fuel-air mixture when it is immersed in the bore ( 13 ). During further rotation, the fuel-air mixture is compressed in the cylinder chamber by the upward movement of the piston ( 14 ). If the piston ( 14 ) now reaches the perihelion ( 28 ) of the guide ( 19 ), the top dead center of the piston ( 14 ) is reached, the ignition of the air / fuel mixture taking place in the position at ( 29 ). This ignition takes place either with the help of a spark plug, not shown. But it is equally possible to achieve the explosion of the fuel-air mixture by self-ignition. As a result, the piston is driven into the bore ( 13 ). The force of the piston stroke causes a torque on the shaft ( 6 ) via the lever arm ( a ). After reaching bottom dead center, the piston ( 14 ) compresses the combusted fuel-air mixture and pushes it into the chamber ( 4 ) via the outlet opening ( 26 ). A turbine wheel ( 30 ) is arranged on the shaft ( 6 ) in a rotationally fixed manner in the chamber ( 4 ). The blades ( 31 ) of the turbine wheel are sealed against the chamber walls ( 10 and 3 ) of the chamber ( 4 ) by means of pressure seals ( 32 ). The burned gases pass through the opening ( 26 ) and a channel (not shown) while still sufficiently hot and under pressure into the space ( 33 ) above the blades ( 31 ) and thus drive the turbine wheel ( 30 ). Thus, the burned exhaust gases are also used to increase the performance of the engine, since they additionally drive the shaft ( 6 ) via the turbine wheel ( 30 ). The engine is started using a conventional starter, which is not shown in the drawing.

Claims (8)

1. Internal combustion engine, consisting of a housing and rotating it on a shaft, the circular disc with a number of cylinder bores provided therein for receiving a sliding piston, which is guided by rollers on approximately elliptical guides, characterized in that the central longitudinal axes of the Make an acute angle to the cylinder bores ( 13 ) with the radius of the disc.
2. Internal combustion engine according to claim 1, characterized in that the guides ( 19 ) are designed as arranged on the mutually facing inner surfaces of the housing walls ( 3 , 11 ) rails on which each sliding piston ( 14 ) run four pairs of rollers ( 18 ) assigned to each other , which are arranged on two rigidly connected to the sliding piston ( 14 ) axes ( 16 , 17 ).
3. Internal combustion engine according to claim 1 and 2, characterized in that on the circumference of the disc ( 12 ) between two cylinder bores ( 13 ) centrifugal seals ( 21 ) are easily seen.
4. Internal combustion engine according to claims 1 to 3, characterized in that between the disc ( 12 ) and the inner surfaces of the housing walls ( 3 and 11 ) in annular grooves in the housing inner surfaces pressure seals ( 22 ) are provided.
5. Internal combustion engine according to claim 1 and one or more of claims 2 to 4, characterized in that in the housing ( 2 ) next to the disc ( 12 ) through an intermediate wall ( 3 ) separated from this a chamber ( 4 ) is seen in which is a turbine wheel ( 30 ), which is rotatably arranged on the disc shaft ( 6 ), the disc chamber ( 5 ) and the chamber ( 4 ) being connected to one another by an exhaust gas duct.
6. Internal combustion engine according to claim 5, characterized in that the blades ( 31 ) of the turbine wheel ( 30 ) on the chamber inner walls ( 10 , 3 ) are sealed with the aid of pressure seals ( 32 ).
7. Internal combustion engine according to claims 1 to 6, characterized in that a plurality of turbine engine units on the shaft ( 6 ) are arranged side by side.
8. Internal combustion engine according to claim 7, characterized in that the central longitudinal axes of the cylinder bores ( 13 ) of the turbine engine units arranged next to one another are offset from one another.
DE19893913862 1989-04-27 1989-04-27 Combustion engine Withdrawn DE3913862A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19893913862 DE3913862A1 (en) 1989-04-27 1989-04-27 Combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893913862 DE3913862A1 (en) 1989-04-27 1989-04-27 Combustion engine
EP19900106987 EP0394763A1 (en) 1989-04-27 1990-04-11 Internal combustion engine

Publications (1)

Publication Number Publication Date
DE3913862A1 true DE3913862A1 (en) 1990-10-31

Family

ID=6379556

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19893913862 Withdrawn DE3913862A1 (en) 1989-04-27 1989-04-27 Combustion engine

Country Status (2)

Country Link
EP (1) EP0394763A1 (en)
DE (1) DE3913862A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145478A1 (en) * 2001-09-14 2003-05-28 Erich Teufl Reciprocating machine with revolving cylinder

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6526925B1 (en) * 1999-05-19 2003-03-04 Willie A. Green, Jr. Piston driven rotary engine
CA2806083A1 (en) * 2012-01-24 2013-07-24 Robert J. Novak Internal combustion engine and compressor or pump with rotor and piston construction, and electrical generator pneumatically driven by same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE260633C (en) *
DE89640C (en) *
AT37247B (en) * 1906-07-14 1909-05-10 Alfred Buechi Turbine for gaseous, liquid or solid fuels.
US877977A (en) * 1907-03-19 1908-02-04 Frank C Axtell Motor.
US1911265A (en) * 1930-04-09 1933-05-30 Marlin S Crossley Rotary engine
DE2648395A1 (en) * 1976-10-26 1978-07-27 Gottfried Kaemmer Rotary radial piston engine - has pistons guided by fingers which slide in circumferential slot of central elliptical members

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145478A1 (en) * 2001-09-14 2003-05-28 Erich Teufl Reciprocating machine with revolving cylinder
DE10145478B4 (en) * 2001-09-14 2007-01-18 Erich Teufl Reciprocating engine with rotating cylinder

Also Published As

Publication number Publication date
EP0394763A1 (en) 1990-10-31

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8139 Disposal/non-payment of the annual fee